1675: French mathematician
Gilles de Roberval,
who invented the Roberval
balance weighing scale, died. 1811:
Isaac Singer, inventor of the continuous-stitch sewing machine, was born.
1873: Farmer Joseph Glidden
applied for a patent on barbed wire. 1904:
New York City Subway opened with 9.1 miles of track running from City Hall
to 145th Street. 1920: Pittsburgh radio station
KDKA received its broadcast
license & call letters. 1927: The first
featuring sound was released in New York. 1938: Du Pont announced "nylon" as the name for its new synthetic yarn. 1943: The first women Marines
reported for duty at
Camp Pendleton. 1961: The first
Saturn I heavy launch vehicle
made an unmanned test launch. 1997: Dow Jones Industrial Average crashed a record 554 points to 7161. 2004:
A total lunar eclipse occurred. 2005: IBM's
Blue Gene/L system set a new world computing record of 280.6 teraflops.
| Feb | Mar |
Apr | May |
Jun | Jul |
Aug | Sep |
Oct | Nov |
historical tidbits have been collected from various sources, mostly on the Internet.
As detailed in
this article, there
is a lot of wrong information that is repeated hundreds of times because most websites
do not validate with authoritative sources. On RF Cafe, events with
hyperlinks have been verified. Many years ago,
I began commemorating the birthdays of notable people and events with
special RF Cafe logos.
Where available, I like to use images from postage stamps from the country where
the person or event occurred. Images used in the logos are often from open source websites
like Wikipedia, and are specifically credited with a hyperlink back to the source where
possible. Fair Use
laws permit small samples of copyrighted content.